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Conversation

@matthew_d_green

That was surprisingly fast.

Quote Tweet

someone found Apple's Neurohash CSAM hash system already embedded in iOS 14.3 and later, and managed to export the MobileNetV3 model and rebuild it in Python how many months until there's a GAN that creates innocuous images that're detected as CSAM? reddit.com/r/MachineLearn

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@matthew_d_green

As was this.

Working Collision? · Issue #1 · AsuharietYgvar/AppleNeuralHash2ONNX

Can you verify that these two images collide? Here's what I see from following your directions: $ python3 nnhash.py NeuralHash/model.onnx neuralhash_128x96_seed1.dat beagle360.png 59a34eabe...

11:29 AM · Aug 18, 2021

@matthew_d_green

Replying to

@matthew_d_green

What’s the German word for “don’t build security systems that rely on obscurity but can’t keep important details confidential for more than two weeks.”

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@matthew_d_green

Apple is going to claim that they didn’t expect the hash function to remain secret, but this is nonsense. If they wanted this code public, they would have released its design as part of the documentation they published last week.

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Replying to

@matthew_d_green

This is amazing

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Replying to

@matthew_d_green

it's the same guy